Here is what i'm trying to do.
sample pic (http://tinyurl.com/7zxjutf)

1. orange line above the box
2. non fixed width drop down box

And this is what i have so far
sample link (http://tinyurl.com/7236ome)
(don't mind my peculiar way of making web, i'm learning 960 grid system right now, and i'll get to that after mock up is done)

it's pretty close except there is a problem. currently the drop down box has a fixed width which is set at 228px. i don't want that. but if i remove width:228px, everything gets screwed up(forming 2 columns, and which rows have different width). and because of the fixed width, the orange border-bottom is all screwed up...